Soil crusher or pulverizer.



No. 656,748. Patented Aug. 28, |900.

C. J. PUL'T". f

SOIL CHUSHER AND PULVERIZERQ (Application filed Sept. 5, 1899.)

(No Model.)

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CASPER J. PULT, OF TONAVANDA, NEW YORK.

SOIL CRUSHER ORPULVERIZER.

SPECFICATION forming part of Letters atent No. 656,748, dated August 28,1900.

Application filed September 5, 1899. l Serial No. 729,527. (N0 model-5T0 all whom it may concern.-

Be it known that I, CASPER J. PULT, a citizen of the United States,residing at North Tonawanda, county of Erie, and State of New York, haveinvented certain new and useful Improvements in Soil Crushers orPulverizers, of which the following is a specification.

This invention relates to soil crushers and pulverizers, and has for itsobject the provision of a simple and inexpensive hand-operated machineof improved construction designed for breaking up the soil to thedesired degree of fineness to adapt it for gardening and hot-housepurposes.

With this object in view the invention consists of a hopper to receivethe soil or earth, a rotatable drum of improved construction in thehopper and provided with breaking or pulverizing pins ,or teeth, androws of pins on the hopper which are adapted to interact with those onthe -dru1n and `arranged in a novel manner relatively to the latter,whereby the soil can be ground to different degrees of fineness byturning the drum in opposite directions.

In the accompanying drawings, Figure lis a perspective view, parts beingbroken away; Fig. 2, a horizontal section; Fig. 3, a crosssection, andFigs. l and 5 detail views,

The flaring hopper l is formed into a rectangular box 2 at its bottom,which hasa discharge-opening and is provided with lugs 3.

The pulverizing-drnm 4 is preferably constructed of wood, and over itsends are fitted metallic caps 5, held to the drum by screws 6. Thesecaps have threaded apertures 7 at their centers, one of which is aright-hand and the other a left-hand thread. The numeral 8 designates ashaft which extends through the drum from end to end and is providedwith screw threaded portions 9, engaging the threaded apertures 7. Owingto this construction there is a constant tendency on the part of theshaft when turning to hold the caps against the ends of the drum, thusinsuring strength and rigidity. The ends of the shaft are journaled inbearings in the ends of box 2, in which the drum rotates, and they havetheir extremities screw-threaded at l0 for connection with a crank l1,which can be applied to either end of said shaft. The drum is providedwith parallel rows of straight ra-A dially-disposed pins l2, preferablyof steel, which have enlarged conical or tapering heads 13 and aredriven into the drum to a proper depth at suitable distances apart.After the pins have been driven into the drum a coat of glue is appliedto the latter to prevent checking. NVhen this coat is dry, the drum ispainted. This treatment of the drum prevents the pins from loosening andfalling out should the drum check or become dry.

On one side of the box 2 is a single row of straight pins or teeth 14,and on the other side of said box is a double row of pins 15. These rowsof teeth extend the full length of the drum and are disposedapproximately along its horizontal diameter in position to interact withthe teeth or pins on the drum. Unlike the pins on the drum, however, thepins lt and l5 are not provided with heads and in this connection I willsay that by the provision of headed pins on the drum and headless pinson the box superior results are obtained in the treatment of thesoil,'as the headed pins press the soil against the headless pins andwhen passing between the latter they tear or disintegrate it verysatisfactorily.

An important feature of the present inven tion is the provision of asingle row of pins on one side of the box and a double row on the otherside, as combined with straight radial pins on the drum,for by turningthe drum toward the single row the soil can be pulverized to a givendegree of fineness, andif a much finer pulverization is desired thecrank can be applied to the other end of the shaft and the drum turnedin the opposite direction to bring the double row of teeth into action.The lumpy soil is introduced into the hopperand after being forcedagainst the pins on the box and broken issues from the bottom of thelatter ready for use.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, isn

The herein-described soil crusher or pul- V IOO threaded apertures,respectively, a shaft eX-l tending through the drum and caps and havuing screw-threaded portions to engage the threadsin the caps, and ahandle for turning said drum in either direction.

In testimony whereof I have signed my named in presence of twoWitnesses.

CASPER J. PULT.

Witnesses:

ADA M. WALTERs, JAs. D. FERRIS.

